Source code for spack.compilers.xl

# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

from spack.compiler import Compiler, UnsupportedCompilerFlag
from spack.version import ver

[docs]class Xl(Compiler): # Subclasses use possible names of C compiler cc_names = ['xlc'] # Subclasses use possible names of C++ compiler cxx_names = ['xlC', 'xlc++'] # Subclasses use possible names of Fortran 77 compiler f77_names = ['xlf'] # Subclasses use possible names of Fortran 90 compiler fc_names = ['xlf90', 'xlf95', 'xlf2003', 'xlf2008'] # Named wrapper links within build_env_path link_paths = {'cc': 'xl/xlc', 'cxx': 'xl/xlc++', 'f77': 'xl/xlf', 'fc': 'xl/xlf90'} version_argument = '-qversion' version_regex = r'([0-9]?[0-9]\.[0-9])' @property def verbose_flag(self): return "-V" @property def debug_flags(self): return ['-g', '-g0', '-g1', '-g2', '-g8', '-g9'] @property def opt_flags(self): return ['-O', '-O0', '-O1', '-O2', '-O3', '-O4', '-O5', '-Ofast'] @property def openmp_flag(self): return "-qsmp=omp" @property def cxx11_flag(self): if self.real_version < ver('13.1'): raise UnsupportedCompilerFlag(self, "the C++11 standard", "cxx11_flag", "< 13.1") else: return "-qlanglvl=extended0x" @property def c99_flag(self): if self.real_version >= ver('13.1.1'): return '-std=gnu99' if self.real_version >= ver('10.1'): return '-qlanglvl=extc99' raise UnsupportedCompilerFlag(self, 'the C99 standard', 'c99_flag', '< 10.1') @property def c11_flag(self): if self.real_version >= ver('13.1.2'): return '-std=gnu11' if self.real_version >= ver('12.1'): return '-qlanglvl=extc1x' raise UnsupportedCompilerFlag(self, 'the C11 standard', 'c11_flag', '< 12.1') @property def cc_pic_flag(self): return "-qpic" @property def cxx_pic_flag(self): return "-qpic" @property def f77_pic_flag(self): return "-qpic" @property def fc_pic_flag(self): return "-qpic" @property def fflags(self): # The -qzerosize flag is effective only for the Fortran 77 # compilers and allows the use of zero size objects. # For Fortran 90 and beyond, it is set by default and has not impact. # Its use has no negative side effects. return "-qzerosize"
[docs] @classmethod def fc_version(cls, fc): # The fortran and C/C++ versions of the XL compiler are always # two units apart. By this we mean that the fortran release that # goes with XL C/C++ 11.1 is 13.1. Having such a difference in # version number is confusing spack quite a lot. Most notably # if you keep the versions as is the default xl compiler will # only have fortran and no C/C++. So we associate the Fortran # compiler with the version associated to the C/C++ compiler. # One last stumble. Version numbers over 10 have at least a .1 # those under 10 a .0. There is no xlf 9.x or under currently # available. BG/P and BG/L can such a compiler mix and possibly # older version of AIX and linux on power. fortran_version = cls.default_version(fc) if fortran_version >= 16: # Starting with version 16.1, the XL C and Fortran compilers # have the same version. So no need to downgrade the Fortran # compiler version to match that of the C compiler version. return str(fortran_version) c_version = float(fortran_version) - 2 if c_version < 10: c_version = c_version - 0.1 return str(c_version)
[docs] @classmethod def f77_version(cls, f77): return cls.fc_version(f77)